Roll-securing device for printing-presses.



J. H. MELLON. ROLL SECURING DEVICE FOR PRINTING PRESSES.

APPLICATION FILED NOV. 1. 1913.

PatefitedLTuly 27, 1915.

2 SHEETS-SHEET 1.

I lw WWII/0i Qflel/QL lwf/ I I I J. H. MELLON.

ROLL SECURING DEVICE FOR PRINTING PRESSES. APPLICATION FILED NOV. 1. 1913.

Patented July 27, 1915.

2 SHEETS-SHEET 2.

JOHN H. MELLON, or KANSAS- CITY, ivrrss'ouar.

ROLL-SECURING- DEVICE FOR PRINTING-PRESSES.

' mawca.

Specification of Letters Patent.

Patented July 2 7, 1915.

Application filed November 1, 1913. Serial No. 798,756.

To all whom it may concern:

Be it known that I, JOHN H. MELLON, a citizen of 'the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Roll- Se curing Devices for Printing- Presses, of which the following is a specification.

This inventionrelates to roll securing devices for printing presses and the object in view isto provide an improved construction for clamping the roll carrying sleeve securely to the paper roll mandrel.

' To this end the invention comprises certain parts which may be readily and quickly applied to the roll mandrel and thereafter be securely clamped in roll-holding position by the turning of the roll.

With this general object in view the invention consists in certain novel and pecul- 'iar features of construction and organizadrel 2, which is mounted in the press in the tion as hereinafter described and claimed; andin 'order that it may be fully understood reference is to be had to the accompanying drawing, in which Figure 1, is a plan view of the roll retained in position by means of my improvements. Fig. 2, is a perspective'view of one of the'clamping members. Fig. 3, is a longitudinal section through the parts shown in Fig. 1' but omitting the roll. aplan view and Fig. 5 is anend view of one of said parts. I y

Referring to the drawings, the roll manusual manner, is provided with a set collar 4 having a tapered extension .or sleeve 6 for fitting inside and supporting one end of a sleeve or core 8 which constitutesa holder for the paper roll 10.-

For supportifig the other end of the ,core' and clamping the same to the mandrel, I have provided a tapered sleeve 12 having a cam flange 14, together with a pair of sleeves 16and 18 adapted to clam the mandrel and also operate said tapered sleeve 12. The sleeve 12 is provided with an internal recess 20, at its outer end, within which ex tend the inner ends of sleeves '16 and 18;. The sleeve 16 is both split and tapered and fits inside the sleeve 18, the bore of which tapers in the same direction as sleeve 16. The sleeve 16 is provided with an externally threaded portion 22 to cooperate with the correspondingly internally threaded portion nul 'inner end of the sleeve Fig. 4, is of one of the clamping parts,

of the outer end of the sleeve 18. An anadjacent the portion 22 to lend resiliency to the split'portion of the sleeve. The sleeves l6 and 18 are also provided at their outer ends with the wrench heads 2t and 26 respectively, and sleeve 18' is further provided with a pair "of lugs 28 adapted to engage a pairof cam surfaces 30 on the flange 14.

In the use ofthe device the sleeve or core 8 with the roll of paper 10 thereon is placed in the position shown, with oneend of the sleeve fitting the tapered extension 6 of the collar 4:. The tapered sleeve 12 is then fitted into the other end of the core 8 and the 18 inserted in the resting against the surfaces-30. The

recess 20 with the lugs 28 lowest points of the cam sleeve 16 is next screwed up within sleeve 18 thereby clamping sleeve 16 firmly against the mandrel, suitable wrenches being used to accomplish this adjustment. If now the paper and its core be rotated they will tend -to cause the sleeve 12' to rotate on the' end on the sleeve 12 being gradually forced into the end of the core 8 and wedged tightly therein by the action of the lugs 28 of sleeve 16 and this drag will result in the same and cams 30, it being understood that the latter taper in the direction of the rotation of the 'roll.

From the foregoing it will be ap arent that I have produced a simple and effective device for carrying out the object of my invention and one that'will readily accommodate difi'erent sizes of paper roll cores and while I have illustrated and described the preferred embodimentof the same, I reserve the right to make all changes properly falling within the spirit and scope of the appended claims.

claim:

1. Ina device for clamping paper roll holders upon a mandrel, a tapered sleeve mounted on the mandrel and fitting within and engaging the inner surface of the holder, a second sleeve fitting loosely around the mandrel and projecting at one end into the bore of the first-named sleeve, the bore of said second sleeve tapering inwardly, one hf said sleeves having a cam surface memher and the other a lug member adapted for mutual engagementv at times, and a split clamping sleeve fitting uponthe mandrel within the bore of said second sleeve and ar groove 23 is formed in the sleeve 16 adapted to be clamped by the latter rigidly to the mandrel and anchor the said second sleeve firmly to form a resistance point whereby when the roll turns the first-named sleeve the latter shall be wedged more firmly in the holder through the travel of the said member of said sleeve upon the said member constituting a part of said second sleeve.

2. In a device for clamping paper roll holders upon a mandrel a tapered sleeve to fit upon the mandrel and within one end of the holder, the bore of said sleeve being enlarged at its outer end to provide'a recess, a second sleeve fitting around the mandrel and projecting into said recess of the firstnamed sleeve, the bore of the second sleeve tapering toward the first-named sleeve, said second sleeve having an internal thread at its outer end, one of said sleeves having a cam member and the other a lug member for mutual engagement at times, a split clamping sleeve fitting on the mandrel within the tapered bore of said second sleeve and provided with an external thread engaging the internal thread of said second sleeve and adapted to be screwed into the latter, to cause it to clamp the said clamping sleeve immovably upon the mandrel and be itself anchored so as to form a resistance point to effect further wed'ging of the firstnamed sleeve into the holder through the cooperative action of the said members on the first-named pair of sleeves.

3. In a device for clamping paper roll holders to the mandrel, a tapered sleeve adapted to fit between the mandrel and holder, said sleeve being provided with a ate with said cam surface to force said tapered sleevetinto said holder when the holder is rotated.

In testimony whereof, I aflix my signature, in the presence of two witnesses.

' JOHN 'MELLON.

'VVitnesses CHAS. W. GE ARD,

G. Y. THORPE. 

